OTDR (Optical Time Domain Reflectometer) is used for measuring Fibre length,locate fibre fault,find fiber losses.
An OTDR injects a series of optical pulses into the fiber under test. It also extracts, from the same end of the fiber, light that is scattered or reflected back from points along the fiber.
The strength of the return pulses is measured and integrated as a function of time, and is plotted as a function of fiber length.
Optical Laser Sources offer greater flexibility and higher accuracy for installing and maintaining multimode datacom networks and LANs as well as for maintaining and repairing singlemode fibers in communication,telecommunications, and CATV-multimedia networks.
Link Test is carried out on entire section terminated at both ends after completion of tasks to ensure the losses are within permissible limits on all fibers.